Socrates keats



(No Model.)

S. KEATS. TOOL FOR TRIMMING SOLES.

No. 437,858. Patented 001;. 7, 1890.

UNITED STATES SOCRATES KEATS, OF

PATENT OFFICE.

TOESS, SWITZERLAND.

TOOL FOR TRIMMING SOLES.

SPECIFICATION forming part of Letters Patent No. 437,858, dated October7', 1890. Application filed May 1, 1889. Seria1N0.309,177. (N0 model.)Patented in England February 3, 1885, No.1,498.

To all whom it may concern:

Be it known that I, SooRATEs KEATS, of Toess, near VVinterthur,Switzerland, have invented certain new and useful Improvements inEdge-Setting and other Cutting Tools for Trimming Boots or Shoes, ofwhich the following is a specification.

I have obtained British Letters Patent for the same, numbered 1,498, anddated February 3, 1885.

My invention consists in the novel combination of cutter-holders andcutters hereinafter described and claimed.

In the accompanying drawings, Figure 1 shows in side elevation acompound cuttingtool, which is used for trimming the edges of soles, andcommonly known as edge-trimming, such tool being carried by a spindleprojecting from the end of a driving-shaft. Fig. 2 is an inner end view,and Fig. 3 is an outer end view, of the compound cutting-tool, which iscomposed of two concentric holders, one fitting over the other andadjustable, so as to vary the width of out according to the thickness ofthe sole to be operated upon. Figs. 4 and 5 show the two parts of thecutter detached from each other and drawn in cross-section, and Figs. 4and 5 show one of the blades detached from their respective holders.

A, Fig. 1, is the spindle on which the tool is mounted.

B and O are the two parts of which the tool is composed. The part B isfitted with blades 1), which make the square cut of the sole edge andalso take off the burr on the inner or upper angle of the sole, and thepart 0 is fitted with cutters c for taking oif the burr on the outer orlower angle of the sole.

The hold-er B, which is screwed onto the end of the spindle A, consistsof a hollow cylinder with one closed and one open end, such cylinderhaving parallel slots cut in its periphery extending from the edge ofthe open to the closed part for the purpose of forming throats for theinsertion of the blades 1). This holder is formed with a taper annularflange b on its inner end, which is intended to enter the crease of theboot or shoe and act as a guide for facilitating the manipulation of theboot. These blades have upon them projecting taper teeth which enter andsubstantially conform to the annular guiding-flange Z) for trimming theburr from the inner edge of the sole.

By reference to Fig. 2 it will be seen that the holder B is fitted withfour cutters, the cutting-edges of which are ground so as to form achamfering-edge at an obtuse angle to the main cutting or paring edge,as shown in the detached views, Fig. 4. These cham feringedges stand upwithin the divided flange b, and, entering the crease of the boot, theyact upon the adjacent edge of the sole and trim off the burr therefrom.The cutters b are made fast in their holder by clampingscrews 11 Thestem of the holderB carries the holder 0, and keyways are formed in boththe spindle and the holder to receive a loose key 0', which is locked bya binding-screw 0 passed through the holder 0. By this arrangement Isecure the adjustment of the holder 0 rela tively to the holder B tosuit the varying thicknesses of sole to be trimmed. The holder 0, itwill be seen, carries two cutters c, which are inserted in spaces out inthe periphery of the holder, and are held in place by clamping-screws.These cutters are intended to take off the burr from the outer or lowerangle of the sole, and for this purpose they are shaped as is best shownin the detached views, Fig. 5.

It will now be understood that this compound tool before being used mustbe adjusted to suit the thickness of the sole to be operated upon, asotherwise the burr of one angle only of the sole edge would be removedby its action.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is In a rotary cutting-tool for trimming boots or shoes,the combination of a hollow slotted holder open at one end and providedround its open end with a divided taper annular guiding-flange,tangential profile-cutters se cured to the interior of said holder andproters mounted on said last-named holder for vided with projectingtaper teeth conforming acting on the outer angle of the Work,subsubstantially to the said flange and entering stantially asspecified.

the divisions therein for producing a chanl- SOCRATES KEATS. fering outat the inner angle of the Work, a Witnesses:

second holder carried by and adjustable end- HENRY MORTIMER, wise on thefirst holder, and chamfering-cutl J. B. HAGEMAN.

